I have an EFK barrel and I like it. The crowning on it isn't all that great but it shoots where I point it. I think others on the board generally like theirs as well. I have seen 2 people on the board that are having small problems with it being drop in. I have always heard the BarSto barrels are good and will hold a certain accuracy value(don't know what it is), but they do cost more and they're not guaranteed to drop in either.
The real question is what are you going to use it for and how much do you want to pay?
I've been looking into BarSto. IF the barrel doesnt' drop in, they have you send the slide and barrel back to them and for $15 IIRC they will fit it.
I will probably do this on the 9 Tactical since it doesn't shoot nearly as well as either of my Service guns or my Subcompact. The Tactical barrel has what appears to be machine chatter marks inside. I contacted Springfield about this, but wasn't impressed with the response. I'll post that experience in a different note.
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